Porous flowmeter

Porous flowmeterThe manufacturer of the production quotation for this flowmeter product model belongs toorifice plate flowmeterClassification: For more direct price quotes of porous and flow control instruments, please feel free to call us for consultation. Below is the product information and details of porous flow meters.

Porous flowmeterThe beginning is a part of the circle (the missing part of the circle),orifice plate flowmeterIt is a high range ratio differential pressure flow device composed of a standard orifice plate and a multi parameter differential pressure transmitter (or differential pressure transmitter, temperature transmitter, and pressure transmitter).The diameter of the circle is 98% of the diameter of the pipeline. The center of the opening arc should be accurately positioned so that it is concentric with the pipeline. This ensures that the opening will not be covered by the pipes and gaskets at both ends, nor will it be covered due to the eccentricity of the pipes. The working principle of a porous orifice flowmeter is that the fluid filled in the pipeline flows through the throttling device in the pipeline, causing local contraction near the throttling element, increasing the flow velocity, and creating a static pressure difference between the upstream and downstream sides. Under the condition of known relevant parameters,Porous flowmeterAccording to the principle of flow continuity and Bernoulli equation, the relationship between pressure difference and flow rate can be derived to obtain the flow rate.

The relationship between the diameter ratio β of the circular hole plate (β=m0.5, m=opening area/tube area) and the relative height h of the hole=α/D (where α is the height of the circular hole) is:

The formula is as follows:

Characteristics of porous flowmeter

The circular hole plate is suitable for measuring dirty media such as humid gases. This measurement can prevent the accumulation of dirt before and after the orifice, and is widely used for measuring various gases and dirty liquids.

Circular orifice flowmeter is based on orifice flowmeter and is used to open holes in the core of the orifice plate. The perforated components require very high technology and must be accurately positioned. It can be concentric with the pipeline to ensure that a portion of the hole is not covered by the pipeline and the gaskets at both ends, thereby affecting measurement accuracy. Circular orifice flow meters are typically suitable for moisture and other contaminants. The measurement of media can avoid the accumulation of dirt before and after the orifice plate, and is widely used for measuring various gases and dirty liquids.

Porous flowmeter structure

The appearance and structure of the porous flowmeter are shown in the following figure. The pressure method is flange pressure.

Installation requirements for porous flow meters

1. Porous pores are only suitable for horizontal or inclined pipelines and cannot be used for vertical pipelines. When the measured fluid contains solid particles, the gap should be at the bottom. If there is gas in the liquid, the gap should be placed at the top

2. Before welding pressure pipes, they should be subjected to pressure first. After drilling, its diameter should be the same as the pressure hole on the pressure flange, and the pressure hole on the pressure flange should be aligned with the pressure hole on the pressure flange. The Conduit.

3. When connecting the throttling device to the pipeline, the perpendicularity between the welding end face and the pipeline axis shall not exceed 1 °. After welding, the internal welds should be treated to make them smooth and free from welding bars and slag.

Product diagram of porous flowmeter

Code Table for Selection of Porous Flow Meter

Scope of application of porous flowmeter:

1. Nominal diameter: 100 mm ≤ DN ≤ 1800mm
2. Aperture ratio β: 0.30 ≤ β ≤ 0.80
3. Nominal pressure: PN ≤ 6.4MPa
4. Accuracy: Level 1

The above is the complete content of porous flowmeter products. You are welcome to call to inquire about the selection and quotation of porous flowmeter.

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